JPS6017473A - Control method of thermal fixing temperature in electrostatic copying machine - Google Patents
Control method of thermal fixing temperature in electrostatic copying machineInfo
- Publication number
- JPS6017473A JPS6017473A JP12654383A JP12654383A JPS6017473A JP S6017473 A JPS6017473 A JP S6017473A JP 12654383 A JP12654383 A JP 12654383A JP 12654383 A JP12654383 A JP 12654383A JP S6017473 A JPS6017473 A JP S6017473A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- fixing
- fixing roller
- auxiliary heater
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
- G03G15/205—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature specially for the mode of operation, e.g. standby, warming-up, error
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、熱定着方式を採用している静電写真複写機に
おける熱定着温度の制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling a heat fixing temperature in an electrostatographic copying machine employing a heat fixing method.
この種の熱定着温度の制御方法としては、従来、次のよ
うな方法が採用されている。Conventionally, the following method has been adopted as a method of controlling this type of heat fixing temperature.
そのひとつは、定着ローラをそれに内蔵のひとつの定着
ヒータのみによって加熱すべく構成すると共に、その定
着ローラの表面温度を検出する温度センサーを設け、そ
の温度センサーによる検出温度に基いて、定着ヒータへ
の電力付勢および電力付勢停止のフィードバック制御を
行なうことにより、定着ローラの表面温度を定着に適し
た目標設定温度に維持させる、という方法である。しか
しながら、この方法では、第１図において一点鎖ＭＡで
示すように、温度Ｔの立上シ時間が遅れるのみならず、
複写機の電源ＯＮ後に初めて目標設定温度Ｔ２に達した
ときの初期オーバーシュートが犬きく、従って、温度Ｔ
が目標設定温度′ｒ２付近に定常的に落ちつくまでに非
常に長時間を要するのみならず、高温発生時に周囲の部
材に悪影響を及はしたシ定着ムラを引き起す欠点がある
。One of them is to configure the fixing roller so that it is heated only by one built-in fixing heater, and also to provide a temperature sensor that detects the surface temperature of the fixing roller. Based on the temperature detected by the temperature sensor, the fixing roller is heated. In this method, the surface temperature of the fixing roller is maintained at a target temperature suitable for fixing by performing feedback control of power energization and power energization stop. However, with this method, as shown by the single-dot chain MA in FIG. 1, not only is the rise time of temperature T delayed;
There is an initial overshoot when the target set temperature T2 is reached for the first time after the copier is turned on, and therefore the temperature T
Not only does it take a very long time for the temperature to steadily settle around the target set temperature 'r2, but also there is a drawback that when a high temperature occurs, it causes uneven fixing which adversely affects surrounding members.
他の方法としては、定着ローラ内に定着ヒータを内蔵す
るのみならず、定着ローラの外方にもその表面に対して
加熱作用をなす補助ヒータを設けて、これら両ヒータを
併用して、前記の方法と同様に制御することが知られて
いる。しかしながら、この方法においては、第１図にお
いて二点鎖線Ｂで示すように、温度の立上り時間を短縮
できるものの、前記の方法と同様に初期オーバーシュー
トはやはシ大きくなってしまうばかりで無く、その後の
オーバーシュートも大きくなる欠点が残る。Another method is to not only incorporate a fixing heater inside the fixing roller, but also provide an auxiliary heater outside the fixing roller that heats the surface of the fixing roller, and to use these two heaters together. It is known that this method can be controlled in the same manner as in However, in this method, as shown by the two-dot chain line B in FIG. 1, although the temperature rise time can be shortened, the initial overshoot not only increases as in the above method, but also The drawback remains that the overshoot after that is also large.
本発明は、上記実情に鑑みてなされたものであって、そ
の目的は、加熱ローラの表面温度の立」ニジ時間を短か
くできるばかりで無く、初期オーバーシュートおよびそ
の後のオーバーシュートを小さくできるような、静電写
真複写機における熱定着温度の制御方法を提供せんとす
ることにある。The present invention has been made in view of the above circumstances, and its purpose is to not only shorten the time it takes for the surface temperature of the heating roller to rise, but also to reduce the initial overshoot and subsequent overshoot. Another object of the present invention is to provide a method for controlling heat fixing temperature in an electrostatographic copying machine.
以下、先ず本発明方法の実施例を図面に基いて説明する
。Hereinafter, first, embodiments of the method of the present invention will be described based on the drawings.
第２図は、本発明方法を適用した静電写真複写機の全体
概略構成を示し、回転駆動可能な感光ドラムｌの外周面
に沿って、帯電装置２、露光装［４３、現像装置４、転
写装置５、分離装置６、および、クリーニング装置７を
配設すると共に、給紙装置８から前記転写装置５を経て
加熱式定着装置９および排紙装置１０へと、複写紙を移
送する紙送りローラ１１および紙送りベルト２７を設け
て溝成しである。FIG. 2 schematically shows the overall structure of an electrostatographic copying machine to which the method of the present invention is applied, in which a charging device 2, an exposure device [43, a developing device 4, A transfer device 5, a separation device 6, and a cleaning device 7 are provided, and a paper feeding device transports copy paper from a paper feed device 8 via the transfer device 5 to a thermal fixing device 9 and a paper discharge device 10. A roller 11 and a paper feed belt 27 are provided to form a groove.
前記加熱式定着装置９は、下記のように構成されている
。即ち、第３図にも示すように、ケーシング１２内に、
スプリング（図示せず）等により互いに圧接するように
付勢された上下一対の定着ローラ１３ 、１４を設ける
と共に、その上側定着ローラの内部には略全長に亘って
加熱ランプから成る定着ヒータ１５を内装し、かつ、そ
の上側定着ロー２１３の外方には、その上側定着ローラ
１３の表面全長に亘って熱光を照射する加熱ラング（ハ
ロゲンランプを使用）から成る補助ヒータ１６を設けで
ある。The heating type fixing device 9 is configured as follows. That is, as shown in FIG. 3, inside the casing 12,
A pair of upper and lower fixing rollers 13 and 14 are provided which are urged to press against each other by a spring (not shown) or the like, and a fixing heater 15 consisting of a heating lamp is installed inside the upper fixing roller over almost its entire length. An auxiliary heater 16 is provided internally and outside the upper fixing roller 213 and is comprised of a heating rung (using a halogen lamp) that irradiates thermal light over the entire surface length of the upper fixing roller 13 .
この上側定着ローラ１３は、厚さ１０ ｍｔｒｒ以下の
アルミニウム管１３ａの表面に、厚さ４０μ以下のフッ
素樹脂膜１３ｂをコーティングして構成されている。他
方の下側定着ロー２１４は、シリコンゴム１４ａｔ［転
軸１４ｂの周部に設けて成る。なお、アルミニウム管１
３ａの熱伝導率は０．２〜０．５Ｃａ４／Ｃｍ−ｅｅｃ
、 ’Ｃ、フッ素樹脂１３１）の熱伝導率は３〜６Ｘ１
０ ｃａｌ／Ｃｍ−Ｅ３ｅＱ・℃である。図中、１７は
、前記上側定着ローラ１３の表面温度Ｔを検出するだめ
の温度センサーであシ、１８は複写紙分離爪である。ま
た、１９は、補助ヒータ１６の発する熱光を集光して上
側定着ロー２１３の表面に照射するために設けられた横
断面略凹面鏡形の反射板である。The upper fixing roller 13 is constructed by coating the surface of an aluminum tube 13a with a thickness of 10 mtrr or less with a fluororesin film 13b with a thickness of 40 μm or less. The other lower fixing row 214 is formed of silicone rubber 14at [provided around the rotating shaft 14b. In addition, aluminum tube 1
The thermal conductivity of 3a is 0.2-0.5Ca4/Cm-eec
, 'C, the thermal conductivity of fluororesin 131) is 3~6X1
0 cal/Cm-E3eQ・℃. In the figure, 17 is a temperature sensor for detecting the surface temperature T of the upper fixing roller 13, and 18 is a copy paper separation claw. Further, reference numeral 19 denotes a reflecting plate having a substantially concave mirror shape in cross section, which is provided to condense the thermal light emitted by the auxiliary heater 16 and irradiate it onto the surface of the upper fixing row 213 .
壕だ、前記反射板１９の底部、および、ケーシング１２
のそれに対向する部分には、夫々、スリット状開口部１
９ａ ｌ １２ａが設けられ、これら開口部１９ａ、１
２ａを介して、前記補助ヒータ１６の発する光が、前記
感光ドラム１の分離装置６とクリーニング装置７との間
における表面に達するように構成されている。つまシ、
この加熱２ングから成る補助ヒータ１６の発する光によ
り、新たな複写プロセスに備えて、感光ドラムｌの除電
を行なわせるようにしたものである。なお、図において
、２０は、前記ケーシング１２の開口部１２ａを覆うフ
ィルターであって、前記補助ヒータ１６から発せられる
光から、感光ドラムｌを光疲労させるような波長領域成
分を遮断すると共に、光強度を除電に適当な強度にまで
弱めるようにするために設けられている。また、２１は
前記ケーシング１２の開口部１２ａの開口面債を調節可
能とするために設けられた遮断板であって、上下にスラ
イド可能に構成されている。The trench, the bottom of the reflector 19, and the casing 12
A slit-shaped opening 1 is provided in the opposite portion of the
9a l 12a are provided, and these openings 19a, 1
The light emitted from the auxiliary heater 16 is configured to reach the surface of the photosensitive drum 1 between the separating device 6 and the cleaning device 7 via the auxiliary heater 2a. Tsumashi,
The light emitted by the auxiliary heater 16 consisting of the two heating rings is used to eliminate static electricity from the photosensitive drum 1 in preparation for a new copying process. In the figure, reference numeral 20 denotes a filter that covers the opening 12a of the casing 12, and blocks wavelength range components that cause optical fatigue on the photosensitive drum l from the light emitted from the auxiliary heater 16, and also blocks light. It is provided to weaken the strength to a strength suitable for static elimination. Reference numeral 21 denotes a blocking plate provided to adjust the opening surface of the opening 12a of the casing 12, and is configured to be slidable up and down.
次に、前記定着ヒータ１５および補助ヒータ１６に対す
る制御構成について説明する。Next, a control configuration for the fixing heater 15 and the auxiliary heater 16 will be explained.
第４図は、制御回路の概略構成を示し、２２は電源、詔
、２４は、夫々、定着ヒータ１５および補助ヒータ１６
への電力付勢および停止を行なう第１および第２トライ
アツク、２５は感光ドラム１の駆動装置であり、これら
両トライアック２３ 、２４および感光ドラム駆動装置
２５は、制御装置２６の出力ボートからの出力により制
御される。この制御装置２６の入力ポートには、複写機
電源のＯＮ、ＯＦＦ信号、コピー信号、および、前記温
度センサー１７からの検出温度信号が入力されている。FIG. 4 shows a schematic configuration of the control circuit, 22 is a power source, 24 is a fixing heater 15 and an auxiliary heater 16, respectively.
The first and second triacs 25 are driving devices for the photosensitive drum 1, and these triacs 23, 24 and the photosensitive drum driving device 25 are connected to the output from the output port of the control device 26. controlled by The input port of the control device 26 receives an ON/OFF signal of the copying machine power supply, a copy signal, and a detected temperature signal from the temperature sensor 17.
前記制御装置２６の制御動作を、第１図のグラフ、第５
図のフローチャート、ならびに、第６図のタイムチャー
トを参照しつつ説明すれば、次の通りである。The control operation of the control device 26 is shown in the graph of FIG.
The process will be explained as follows with reference to the flowchart shown in the figure and the time chart shown in FIG.
複写機の電源がＯＮされると、制御装置２６は、先ず、
第１トライアツク２３のゲート端子にトリガ信号を発し
て定着ヒータ１５へ電力付勢する。すると、定着ローラ
１３はその内部から加熱されて、その表面の温度Ｔは次
第に上昇して、やがて、定着に適した第２設定温度Ｔ２
（１８０°Ｃ程度）の約７０〜８０チに設定された第１
設定温度Ｔ１に達する。この時、制御装置２６は、第２
トライアツク２４のゲート端子にトリガ信号を発して補
助ヒータ１６へも電力付勢すると共に、感光ドラム駆動
装置２５にも駆動開始信号を発して、感光ドラム１を回
転させる。When the power of the copying machine is turned on, the control device 26 first
A trigger signal is issued to the gate terminal of the first triax 23 to energize the fixing heater 15 with power. Then, the fixing roller 13 is heated from inside, and the temperature T of its surface gradually rises until it reaches the second set temperature T2 suitable for fixing.
The first temperature was set at approximately 70 to 80 degrees (approximately 180°C).
The set temperature T1 is reached. At this time, the control device 26 controls the second
A trigger signal is issued to the gate terminal of the triax 24 to energize the auxiliary heater 16, and a drive start signal is also issued to the photosensitive drum driving device 25 to rotate the photosensitive drum 1.
これによって、定着ロー２１３は、その内部からのみな
らず、その外部からも加熱されることとなって、その表
面温度Ｔは急激に上昇し、また、その間に、補助ヒータ
１６から発せられる光の一部は回転する感光ドラムｌに
照射されて、その除電作用を行なう。As a result, the fixing row 213 is heated not only from the inside but also from the outside, and its surface temperature T rises rapidly. A portion of the light is irradiated onto the rotating photosensitive drum 1 to eliminate the static electricity thereon.
やがて、定着ローラ１３の表面温度Ｔが前記第２設定温
度Ｔ２に達すると、制御装置２６は、直ちに、第１およ
び第２トライアック詔、２４の各ゲート端子へのトリガ
信号の送給を停止して、定着ヒータ１５および補助ヒー
タ１６に対する電力付勢を停止させると共に、感光ドラ
ム駆動装置２５にも停止信号を発して感光ドラム１の回
転を停止させ、その後暫くは、つまシ、コピー信号ＯＮ
の信号が入力されない限シは、補助ヒータ１６への電力
付勢は行なわずに、定着ヒータ１５のみへの電力付勢お
よび停止によって、定着ロー２１３の表面温度Ｔを第２
設定温度１゛２に維持するようにフィードバック制御を
行なうのである。Eventually, when the surface temperature T of the fixing roller 13 reaches the second set temperature T2, the control device 26 immediately stops sending the trigger signal to each gate terminal of the first and second triacs 24. Then, the power applied to the fixing heater 15 and the auxiliary heater 16 is stopped, and a stop signal is also issued to the photosensitive drum drive device 25 to stop the rotation of the photosensitive drum 1. After that, the print and copy signals are turned on for a while.
As long as the signal is not input, the surface temperature T of the fixing row 213 is raised to the second level by applying power to only the fixing heater 15 and stopping it, without applying power to the auxiliary heater 16.
Feedback control is performed to maintain the set temperature at 1.2.
かかる制御を行なうことによって、第１図のグラフにお
いて実線Ｃで示すように、定着ロー２１３の表面温度変
化を、立ち上シが早く、しかも、オーバーシュートが少
なくて、早期のうちに安定した定常状態に落ちつくよう
にできるのである。By performing such control, as shown by the solid line C in the graph of FIG. It allows you to calm down.
ところで、前記補助ヒータ１６は、コピー信号がＯＮさ
れたときにも電力付勢されて、コピー動作中にも除電作
用が発揮されるように構成されている。Incidentally, the auxiliary heater 16 is configured to be energized with power even when the copy signal is turned on, and to perform the static elimination function even during the copy operation.
なお、前記制御装置２６は、マイクロコンピュータを利
用したソフト構成としても、あるいは、ハード構成とし
てもよい。Note that the control device 26 may have a software configuration using a microcomputer or a hardware configuration.
以上要するに、本発明による静電写真複写機における熱
定着温度の制御方法は、
電源をＯＮしたときに、先ず定着ローラに内蔵の定着ヒ
ータへ電力付勢し、
前記定着ローラの表面温度が定着に適した第２設定温度
よりも低い第１設定温度に達したときに、前記定着ロー
ラの外方に設けた補助ヒータへも電力付勢し、
前記定着ローラの表面温度が前記第２設定温度に達した
後コピー信号が入力されるまでの間は、前記補助ヒータ
への電力付勢は行なわずに、定着ヒータのみによる定着
ローラの温度制御を行なうことを特徴とする。In summary, the method for controlling the heat fixing temperature in an electrostatographic copying machine according to the present invention is as follows: When the power is turned on, power is first energized to the fixing heater built into the fixing roller, and the surface temperature of the fixing roller is adjusted to the level required for fixing. When a first set temperature lower than a suitable second set temperature is reached, power is also energized to an auxiliary heater provided outside the fixing roller, and the surface temperature of the fixing roller reaches the second set temperature. After reaching this point, until a copy signal is input, the temperature of the fixing roller is controlled only by the fixing heater without applying power to the auxiliary heater.
即ち、定着ローラの表面温度が目標値としての第２設定
温度に達する直前にのみ、定着ヒータと補助ヒータとを
併用した大熱量で加熱する一方、その第２設定温度に達
してからは定着ヒータのみによる小熱量で温度制御を行
なうようにしたので、定着ローラ表面温度変化を、立上
り時間がある程度短かいものにできながら、しかも、初
期オーバーシュートが小さく、また、その後のオーバー
シュートも小さいものにでき、もって、目標温度近辺に
早期のうちに、しかも、変化の少ない状態で落ちつかせ
られるようになったのである。That is, only immediately before the surface temperature of the fixing roller reaches the second set temperature as a target value, the fixing heater and the auxiliary heater are used together to heat the roller with a large amount of heat, and after reaching the second set temperature, the fixing heater Since temperature control is performed using a small amount of heat generated by a chisel, the temperature change on the surface of the fixing roller can be made to have a fairly short rise time, while the initial overshoot is small and the subsequent overshoot is also small. This makes it possible to quickly stabilize the temperature near the target temperature and with little change.
第１図は、本発明方法ならびに従来方法による作用を比
較して説明するためのグラフ、第２図は、本発明方法を
適用した静電写真複写機の全体概略側断面図、第３図は
要部の拡大側断面図、第４図は概略制御回路図、第５図
は制御フローチャート、そして、第６図は制御タイムチ
ャートである。
ｌ・・・感光ドラム、Ｂ・・・定着ローラ、１５・・・
定着ヒータ、１６・・・補助ヒータ、Ｔ・・・定着ロー
ラの表面温度、′ｒ、・・・第１設定温度、Ｔ２・・・
第２設定温度。FIG. 1 is a graph for comparing and explaining the effects of the method of the present invention and the conventional method, FIG. 2 is a schematic side sectional view of an electrostatographic copying machine to which the method of the present invention is applied, and FIG. 4 is a schematic control circuit diagram, FIG. 5 is a control flowchart, and FIG. 6 is a control time chart. L...Photosensitive drum, B...Fixing roller, 15...
Fixing heater, 16... Auxiliary heater, T... Surface temperature of fixing roller, 'r,... First set temperature, T2...
Second set temperature.
Claims (1)
定着ヒータへ電力付勢し、 前記定着ローラの表面温度が定着に適した第２設定温度
よシも低い第１設定温度に達しだときに、前記定着ロー
ラの外方に設けた補助ヒータへも電力付勢し、 前記定着ローラの表面温度が前記第２設定温度に達した
後コピー信号が入力されるまでの間は、前記補助ヒータ
への電力付勢は行なわずに定着ヒータのみによる定着ロ
ーラの温度制御を行なうことを特徴とする静電写真複写
機における熱定着温度の制御方法。 ■ 前記第１設定温度を第２設定温度の７０φ〜８０％
に設定することを特徴とする特許請求の範囲第０項に記
載の静電写真複写機における熱定着温度の制御方法。 ■ 前記補助ヒータとして加熱ランプを用いると共に、
この加熱ランプを、その発する光が感光ドラムにも照射
するように構成することにより、感光ドラムに対する除
電ランプにも兼用することを！１テ徴とする特許請求の
範囲第０項または第０項に記載の静電写真複写機におけ
る熱定着温度の制御方法０ ■ 前記加熱兼除電２ンプから成る補助ヒータへ。 コピー信号ＯＮ時にも電力付勢することを特徴とする特
許請求の範囲第０項に記載の静電写真複写機における熱
定着温度の制御方法。[Claims] ■ When the power is turned on, power is first energized to the fixing heater built into the fixing roller, and the surface temperature of the fixing roller is lower than the second set temperature suitable for fixing. When the set temperature is reached, an auxiliary heater provided outside the fixing roller is also energized, and after the surface temperature of the fixing roller reaches the second set temperature, until a copy signal is input. A method for controlling a heat fixing temperature in an electrostatographic copying machine, characterized in that the temperature of the fixing roller is controlled only by the fixing heater without applying power to the auxiliary heater. ■ The first set temperature is 70φ to 80% of the second set temperature.
A method of controlling a heat fixing temperature in an electrostatographic copying machine according to claim 0, wherein the temperature is set to . ■ Using a heating lamp as the auxiliary heater,
By configuring this heating lamp so that the light it emits also irradiates the photosensitive drum, it can also be used as a static elimination lamp for the photosensitive drum! A method for controlling heat fixing temperature in an electrostatographic copying machine according to claim 0 or 0, characterized in that it has the following characteristics: (1) To the auxiliary heater consisting of the two heating and neutralizing pumps. A method for controlling heat fixing temperature in an electrostatic photocopier according to claim 0, characterized in that power is energized even when a copy signal is ON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12654383A JPS6017473A (en) | 1983-07-09 | 1983-07-09 | Control method of thermal fixing temperature in electrostatic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12654383A JPS6017473A (en) | 1983-07-09 | 1983-07-09 | Control method of thermal fixing temperature in electrostatic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6017473A true JPS6017473A (en) | 1985-01-29 |
| JPH0436384B2 JPH0436384B2 (en) | 1992-06-16 |
Family
ID=14937781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12654383A Granted JPS6017473A (en) | 1983-07-09 | 1983-07-09 | Control method of thermal fixing temperature in electrostatic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017473A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4998121A (en) * | 1988-10-03 | 1991-03-05 | Canon Kabushiki Kaisha | Image forming apparatus |
| EP0743571A2 (en) * | 1995-05-19 | 1996-11-20 | Sharp Kabushiki Kaisha | Toner-image fixing device for image forming device |
| EP0905581A2 (en) * | 1997-09-30 | 1999-03-31 | Xerox Corporation | Fuser system |
| EP1542092A3 (en) * | 2003-12-08 | 2005-10-12 | Ricoh Company, Ltd. | Heater, fixing unit and image forming apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141045A (en) * | 1977-05-16 | 1978-12-08 | Hitachi Ltd | Temperature controller |
| JPS5488134A (en) * | 1977-12-26 | 1979-07-13 | Ricoh Co Ltd | Heat fixing device |
| JPS5887575A (en) * | 1981-11-20 | 1983-05-25 | Ricoh Co Ltd | Temperature controlling method for fixation device |
-
1983
- 1983-07-09 JP JP12654383A patent/JPS6017473A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141045A (en) * | 1977-05-16 | 1978-12-08 | Hitachi Ltd | Temperature controller |
| JPS5488134A (en) * | 1977-12-26 | 1979-07-13 | Ricoh Co Ltd | Heat fixing device |
| JPS5887575A (en) * | 1981-11-20 | 1983-05-25 | Ricoh Co Ltd | Temperature controlling method for fixation device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4998121A (en) * | 1988-10-03 | 1991-03-05 | Canon Kabushiki Kaisha | Image forming apparatus |
| EP1146401A2 (en) * | 1995-05-19 | 2001-10-17 | Sharp Kabushiki Kaisha | Toner-image fixing device for image forming device |
| EP0743571A3 (en) * | 1995-05-19 | 1996-12-04 | Sharp Kk | |
| US5708920A (en) * | 1995-05-19 | 1998-01-13 | Sharp Kabushiki Kaisha | Toner-image fixing device with roller-temperature limitation |
| EP0743571A2 (en) * | 1995-05-19 | 1996-11-20 | Sharp Kabushiki Kaisha | Toner-image fixing device for image forming device |
| EP1146401A3 (en) * | 1995-05-19 | 2001-11-28 | Sharp Kabushiki Kaisha | Toner-image fixing device for image forming device |
| EP0905581A2 (en) * | 1997-09-30 | 1999-03-31 | Xerox Corporation | Fuser system |
| EP0905581A3 (en) * | 1997-09-30 | 2000-03-29 | Xerox Corporation | Fuser system |
| EP1542092A3 (en) * | 2003-12-08 | 2005-10-12 | Ricoh Company, Ltd. | Heater, fixing unit and image forming apparatus |
| US7609988B2 (en) | 2003-12-08 | 2009-10-27 | Ricoh Company, Ltd. | Heater, fixing unit and image forming apparatus having power supplied from chargeable auxiliary power supplying unit varied per unit time |
| US7664410B2 (en) | 2003-12-08 | 2010-02-16 | Ricoh Company, Ltd. | Image forming apparatus with control of power to a fixing unit |
| US7885569B2 (en) | 2003-12-08 | 2011-02-08 | Ricoh Company, Ltd. | Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit |
| US7957663B2 (en) | 2003-12-08 | 2011-06-07 | Ricoh Company, Ltd. | Heater, fixing unit and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0436384B2 (en) | 1992-06-16 |
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